// src/pages/goods/goods.vue
<script setup lang="ts">
import { getgoodsAPI } from '@/services/goods'
import { onLoad } from '@dcloudio/uni-app'
import { ref, computed } from 'vue'
import type { GoodsResult } from '@/types/goods'
import type {
  SkuPopupLocaldata,
  SkuPopupInstance,
  SkuPopupEvent,
} from '@/components/vk-data-goods-sku-popup/vk-data-goods-sku-popup'
import AddressPanel from './components/AdressPanel.vue'
import ServicePanel from './components/ServicePanel.vue'
import { postMemberCartAPI } from '@/services/cart'

// 获取屏幕边界到安全区域距离
const { safeAreaInsets } = uni.getSystemInfoSync()

// 获取路由参数
const query = defineProps<{
  id: String
}>()
// 商品详情
const goods = ref<GoodsResult>()
const getgoods = async () => {
  const { result } = await getgoodsAPI('4007498')
  goods.value = result
  // 处理为SKU组件数据所需格式
  localdata.value = {
    _id: result.id,
    name: result.name,
    goods_thumb: result.mainPictures[0],
    spec_list: result.specs.map((v) => ({ name: v.name, list: v.values })),
    sku_list: result.skus.map((v) => ({
      _id: v.id,
      goods_id: result.id,
      goods_name: result.name,
      image: v.picture,
      price: v.price * 100, // 注意：如v.price=99.00，渲染出来为0.99，插件要求需要乘以 100
      stock: v.inventory,
      sku_name_arr: v.specs.map((vv) => vv.valueName),
    })),
  }
}

onLoad(() => {
  getgoods()
})

// 轮播图当前索引
const current = ref(1)
const swiperChange: UniHelper.SwiperOnChange = (e) => {
  current.value = e.detail!.current + 1
}
// 点击图片预览
const onTapImage = (url: string) => {
  uni.previewImage({
    current: url,
    urls: goods.value!.mainPictures,
  })
}

// uni-ui弹出层 - 点击地址/服务弹出
// const popupRef = ref() // 这是组合式api获取绑定ref的组件实例的方式，选项式api通过this.$refs
const popupRef = ref<{
  open: (type?: UniHelper.UniPopupType) => void
  close: () => void
}>()
const popupName = ref<'address' | 'service'>()
const openPopup = (type: typeof popupName.value) => {
  popupName.value = type
  popupRef.value?.open()
}

enum SKUMode {
  Both = 1, // 默认值，都展示
  Cart = 2, // 只展示加入购物车按钮
  BuyNow = 3, // 只展示立即购买按钮
}
const showSKU = ref<boolean>(false) // 是否显示SKU商品规格弹窗
const localdata = ref({} as SkuPopupLocaldata) // SKU组件所需数据
// const mode = ref<1 | 2 | 3>(1) // SKU底部按钮模式（为了更直观的了解数字代表的含义，可采用enum枚举提高代码可读性）
const mode = ref<SKUMode>(SKUMode.Both)
const openSKU = (val: SKUMode = SKUMode.Both) => {
  showSKU.value = true
  mode.value = val
}

const SKURef = ref<SkuPopupInstance>() // SKU组件实例
const selectText = computed(() => {
  // ['颜色'，'尺码']，取消选择元素为两个空字符串，所以需要用trim()去除前后空格
  return SKURef.value?.selectArr?.join(' ').trim() || '请选择商品规格'
})

// 关闭SKU弹窗（给弹窗右上角的关闭符号使用）
const onClose = () => (showSKU.value = false)
// 确认加入购物车
const onAddCart = async (ev: SkuPopupEvent) => {
  await postMemberCartAPI({ skuId: ev._id, count: ev.buy_num })
  uni.showToast({ title: '加入购物车成功', icon: 'success' })
  // 关闭SKU弹窗
  showSKU.value = false
}
// 立即购买
const onBuyNow = (ev: SkuPopupEvent) => {
  // 跳转到确认订单结算页面
  uni.navigateTo({
    url: '/pagesOrder/create/create?skuId=' + ev._id + '&count=' + ev.buy_num,
  })
}
</script>

<template>
  <scroll-view scroll-y class="viewport">
    <!-- 基本信息 -->
    <view class="goods">
      <!-- 商品主图轮播 -->
      <view class="preview">
        <swiper circular @change="swiperChange">
          <swiper-item v-for="item in goods?.mainPictures" :key="item">
            <image mode="aspectFill" :src="item" @tap="onTapImage(item)" />
          </swiper-item>
        </swiper>
        <view class="indicator">
          <text class="current">{{ current + 1 }}</text>
          <text class="split">/</text>
          <text class="total">{{ goods?.mainPictures.length }}</text>
        </view>
      </view>

      <!-- 商品简介 -->
      <view class="meta">
        <view class="price">
          <text class="symbol">¥</text>
          <text class="number">29.90</text>
        </view>
        <view class="name ellipsis">云珍·轻软旅行长绒棉方巾 </view>
        <view class="desc"> 轻巧无捻小方巾，旅行便携 </view>
      </view>

      <!-- 操作面板 -->
      <view class="action">
        <view class="item arrow">
          <text class="label">选择</text>
          <text class="text ellipsis" @tap="() => openSKU(SKUMode.Both)">
            {{ selectText }}
          </text>
        </view>
        <view class="item arrow" @tap="openPopup('address')">
          <text class="label">送至</text>
          <text class="text ellipsis"> 请选择收获地址 </text>
        </view>
        <view class="item arrow" @tap="openPopup('service')">
          <text class="label">服务</text>
          <text class="text ellipsis"> 无忧退 快速退款 免费包邮 </text>
        </view>
      </view>
    </view>

    <!-- 商品详情 -->
    <view class="detail panel">
      <view class="title">
        <text>详情</text>
      </view>
      <view class="content">
        <view class="properties">
          <!-- 属性详情 -->
          <view class="item">
            <text class="label">属性名</text>
            <text class="value">属性值</text>
          </view>
          <view class="item">
            <text class="label">属性名</text>
            <text class="value">属性值</text>
          </view>
        </view>
        <!-- 图片详情 -->
        <image
          mode="widthFix"
          src="https://yanxuan-item.nosdn.127.net/a8d266886d31f6eb0d7333c815769305.jpg"
        ></image>
        <image
          mode="widthFix"
          src="https://yanxuan-item.nosdn.127.net/a9bee1cb53d72e6cdcda210071cbd46a.jpg"
        ></image>
      </view>
    </view>

    <!-- 同类推荐 -->
    <view class="similar panel">
      <view class="title">
        <text>同类推荐</text>
      </view>
      <view class="content">
        <navigator
          v-for="item in 4"
          :key="item"
          class="goods"
          hover-class="none"
          :url="`/pages/goods/goods?id=`"
        >
          <image
            class="image"
            mode="aspectFill"
            src="https://yanxuan-item.nosdn.127.net/e0cea368f41da1587b3b7fc523f169d7.png"
          ></image>
          <view class="name ellipsis">简约山形纹全棉提花毛巾</view>
          <view class="price">
            <text class="symbol">¥</text>
            <text class="number">18.50</text>
          </view>
        </navigator>
      </view>
    </view>
  </scroll-view>

  <!-- 用户操作 -->
  <view class="toolbar" :style="{ paddingBottom: safeAreaInsets?.bottom + 'px' }">
    <view class="icons">
      <button class="icons-button"><text class="icon-heart"></text>收藏</button>
      <!-- #ifdef MP-WEIXIN-->
      <button class="icons-button" open-type="contact">
        <text class="icon-handset"></text>客服
      </button>
      <!-- #endif-->
      <navigator class="icons-button" url="/pages/cart/cart2">
        <text class="icon-cart"></text>购物车
      </navigator>
    </view>
    <view class="buttons">
      <view class="addcart" @tap="openSKU(SKUMode.Cart)"> 加入购物车 </view>
      <view class="buynow" @tap="openSKU(SKUMode.BuyNow)"> 立即购买 </view>
    </view>
  </view>
  <!-- uni-ui 弹出层组件（点击地址/服务弹出）  -->
  <uni-popup ref="popupRef" type="bottom" background-color="#fff">
    <AddressPanel v-if="popupName === 'address'" @close="popupRef?.close()" />
    <ServicePanel v-if="popupName === 'service'" @close="popupRef?.close()" />
  </uni-popup>
  <!-- SKU 弹出层组件（点击商品规格/加入购物车/立即购买弹出） -->
  <vk-data-goods-sku-popup
    v-model="showSKU"
    :localdata="localdata"
    :mode="mode"
    add-cart-background-color="#FFA868"
    buy-now-background-color="#27BA9B"
    ref="SKURef"
    :actived-style="{
      color: '#27BA9B',
      borderColor: '#27BA9B',
      backgroundColor: '#E9F8F5',
    }"
    @close="onClose"
    @add-cart="onAddCart"
    @buy-now="onBuyNow"
  />
</template>

<style lang="scss">
// 解决客服按钮不在h5、app渲染后，且购物车navigator在h5、app渲染中渲染时被多渲染的a标签包裹，导致购物车的flex:1不生效问题
/* ifdef APP-PLUS || H5 */
.toolbar .icons .navigator-wrap {
  flex: 1;
}
/* endif */
page {
  height: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.viewport {
  background-color: #f4f4f4;
}

.panel {
  margin-top: 20rpx;
  background-color: #fff;
  .title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 90rpx;
    line-height: 1;
    padding: 30rpx 60rpx 30rpx 6rpx;
    position: relative;
    text {
      padding-left: 10rpx;
      font-size: 28rpx;
      color: #333;
      font-weight: 600;
      border-left: 4rpx solid #27ba9b;
    }
    navigator {
      font-size: 24rpx;
      color: #666;
    }
  }
}

.arrow {
  &::after {
    position: absolute;
    top: 50%;
    right: 30rpx;
    content: '\e6c2';
    color: #ccc;
    font-family: 'erabbit' !important;
    font-size: 32rpx;
    transform: translateY(-50%);
  }
}

/* 商品信息 */
.goods {
  background-color: #fff;
  .preview {
    height: 750rpx;
    position: relative;
    .image {
      width: 750rpx;
      height: 750rpx;
    }
    .indicator {
      height: 40rpx;
      padding: 0 24rpx;
      line-height: 40rpx;
      border-radius: 30rpx;
      color: #fff;
      font-family: Arial, Helvetica, sans-serif;
      background-color: rgba(0, 0, 0, 0.3);
      position: absolute;
      bottom: 30rpx;
      right: 30rpx;
      .current {
        font-size: 26rpx;
      }
      .split {
        font-size: 24rpx;
        margin: 0 1rpx 0 2rpx;
      }
      .total {
        font-size: 24rpx;
      }
    }
  }
  .meta {
    position: relative;
    border-bottom: 1rpx solid #eaeaea;
    .price {
      height: 130rpx;
      padding: 25rpx 30rpx 0;
      color: #fff;
      font-size: 34rpx;
      box-sizing: border-box;
      background-color: #35c8a9;
    }
    .number {
      font-size: 56rpx;
    }
    .brand {
      width: 160rpx;
      height: 80rpx;
      overflow: hidden;
      position: absolute;
      top: 26rpx;
      right: 30rpx;
    }
    .name {
      max-height: 88rpx;
      line-height: 1.4;
      margin: 20rpx;
      font-size: 32rpx;
      color: #333;
    }
    .desc {
      line-height: 1;
      padding: 0 20rpx 30rpx;
      font-size: 24rpx;
      color: #cf4444;
    }
  }
  .action {
    padding-left: 20rpx;
    .item {
      height: 90rpx;
      padding-right: 60rpx;
      border-bottom: 1rpx solid #eaeaea;
      font-size: 26rpx;
      color: #333;
      position: relative;
      display: flex;
      align-items: center;
      &:last-child {
        border-bottom: 0 none;
      }
    }
    .label {
      width: 60rpx;
      color: #898b94;
      margin: 0 16rpx 0 10rpx;
    }
    .text {
      flex: 1;
      -webkit-line-clamp: 1;
    }
  }
}

/* 商品详情 */
.detail {
  padding-left: 20rpx;
  .content {
    margin-left: -20rpx;
    .image {
      width: 100%;
    }
  }
  .properties {
    padding: 0 20rpx;
    margin-bottom: 30rpx;
    .item {
      display: flex;
      line-height: 2;
      padding: 10rpx;
      font-size: 26rpx;
      color: #333;
      border-bottom: 1rpx dashed #ccc;
    }
    .label {
      width: 200rpx;
    }
    .value {
      flex: 1;
    }
  }
}

/* 同类推荐 */
.similar {
  .content {
    padding: 0 20rpx 200rpx;
    background-color: #f4f4f4;
    display: flex;
    flex-wrap: wrap;
    .goods {
      width: 340rpx;
      padding: 24rpx 20rpx 20rpx;
      margin: 20rpx 7rpx;
      border-radius: 10rpx;
      background-color: #fff;
    }
    .image {
      width: 300rpx;
      height: 260rpx;
    }
    .name {
      height: 80rpx;
      margin: 10rpx 0;
      font-size: 26rpx;
      color: #262626;
    }
    .price {
      line-height: 1;
      font-size: 20rpx;
      color: #cf4444;
    }
    .number {
      font-size: 26rpx;
      margin-left: 2rpx;
    }
  }
  navigator {
    &:nth-child(even) {
      margin-right: 0;
    }
  }
}

/* 底部工具栏 */
.toolbar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background-color: #fff;
  height: 100rpx;
  padding: 0 20rpx var(--window-bottom);
  border-top: 1rpx solid #eaeaea;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-sizing: content-box;
  .buttons {
    display: flex;
    & > view {
      width: 220rpx;
      text-align: center;
      line-height: 72rpx;
      font-size: 26rpx;
      color: #fff;
      border-radius: 72rpx;
    }
    .addcart {
      background-color: #ffa868;
    }
    .buynow,
    .payment {
      background-color: #27ba9b;
      margin-left: 20rpx;
    }
  }
  .icons {
    padding-right: 10rpx;
    display: flex;
    align-items: center;
    flex: 1;
    .icons-button {
      flex: 1;
      text-align: center;
      line-height: 1.4;
      padding: 0;
      margin: 0;
      border-radius: 0;
      font-size: 20rpx;
      color: #333;
      background-color: #fff;
      &::after {
        border: none;
      }
    }
    text {
      display: block;
      font-size: 34rpx;
    }
  }
}
</style>
